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The Moroso Ultra spark plug wire set for SB Chrysler/Mopar applications uses straight plug boots with HEI-compatible terminals and sleeved insulation in black. Geared to Chrysler small-block installs that use HEI distributors and straight connections, the sleeved design supports neat over‑valve routing while matching black engine aesthetics.
Moroso SB Chrysler Mopar Sleeved Str Plug HEI Dist Ultra Spark Plug Wire Set - Black
